.head {
  width: 414px;
  height: 44px;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  background-color: #fff;
}
.head h2 {
  font-size: 20px;
  text-align: center;
  line-height: 44px;
  font-weight: normal;
}
.main {
  width: 100%;
  height: 100%;
  background: url(../../assets/imgs/advertisement-bg.jpg) no-repeat;
  background-size: cover;
  position: relative;
  background-position: center;
  object-fit: cover;
  overflow: hidden;
}
.main a {
  width: 105px;
  height: 40px;
  border-radius: 20px;
  position: fixed;
  top: 72px;
  right: 14px;
  background: #fff;
  line-height: 40px;
  font-size: 16px;
  padding-left: 20px;
}
.main a .countdown {
  margin-right: 5px;
}
.main a .jump {
  margin-left: 2px;
}
.main h1 {
  width: 300px;
  color: #fff;
  font-size: 40px;
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 200px;
  animation: move 2s ease-in-out;
}
@keyframes move {
  0% {
    transform: translateX(-50%) scale(0.3);
    bottom: 460px;
    left: 50%;
  }
  50% {
    left: 50%;
    transform: translateX(-50%) scale(1.3);
    bottom: 180px;
  }
  100% {
    left: 50%;
    transform: translateX(-50%) scale(1);
    bottom: 200px;
  }
}
